You may want to use this mixin on its own — but this mixin's primary purpose is to facilitate the positioning mixins:
scut-fixed, which pair your coordinates with a
Some guidlines for this mixin and its followers:
n(the default value) signifies
nullor "nothing" or "no" — so any coordinate assigned
nis simply ignored, creating no rule in your compiled CSS.
auto(both will work).
- All four values must be passed, so use